<title>「POI2007」旅游景点 Tourist Attractions</title><link href="http://hzoi.com/tomorrow.css" rel="stylesheet"><div class="ui existing segment"><pre><code><span class="pl-cp">#include</span> <span class="pl-cpf">&lt;cstdio&gt;</span><span class="pl-cp"></span>
<span class="pl-cp">#include</span> <span class="pl-cpf">&lt;cstring&gt;</span><span class="pl-cp"></span>
<span class="pl-cp">#include</span> <span class="pl-cpf">&lt;iostream&gt;</span><span class="pl-cp"></span>
<span class="pl-cp">#include</span> <span class="pl-cpf">&lt;queue&gt;</span><span class="pl-cp"></span>
<span class="pl-cp">#define pa pair&lt;int, int&gt;</span>
<span class="pl-cp">#define inf 1000000000</span>
<span class="pl-cp">#define ll long long</span>
<span class="pl-k">using</span> <span class="pl-k">namespace</span> <span class="pl-n">std</span><span class="pl-p">;</span>
<span class="pl-kt">int</span> <span class="pl-nf">read</span><span class="pl-p">()</span> <span class="pl-p">{</span>
    <span class="pl-kt">int</span> <span class="pl-n">x</span> <span class="pl-o">=</span> <span class="pl-mi">0</span><span class="pl-p">,</span> <span class="pl-n">f</span> <span class="pl-o">=</span> <span class="pl-mi">1</span><span class="pl-p">;</span>
    <span class="pl-kt">char</span> <span class="pl-n">ch</span> <span class="pl-o">=</span> <span class="pl-n">getchar</span><span class="pl-p">();</span>
    <span class="pl-k">while</span> <span class="pl-p">(</span><span class="pl-n">ch</span> <span class="pl-o">&lt;</span> <span class="pl-sc">&#39;0&#39;</span> <span class="pl-o">||</span> <span class="pl-n">ch</span> <span class="pl-o">&gt;</span> <span class="pl-sc">&#39;9&#39;</span><span class="pl-p">)</span> <span class="pl-p">{</span>
        <span class="pl-k">if</span> <span class="pl-p">(</span><span class="pl-n">ch</span> <span class="pl-o">==</span> <span class="pl-sc">&#39;-&#39;</span><span class="pl-p">)</span> <span class="pl-n">f</span> <span class="pl-o">=</span> <span class="pl-o">-</span><span class="pl-mi">1</span><span class="pl-p">;</span>
        <span class="pl-n">ch</span> <span class="pl-o">=</span> <span class="pl-n">getchar</span><span class="pl-p">();</span>
    <span class="pl-p">}</span>
    <span class="pl-k">while</span> <span class="pl-p">(</span><span class="pl-n">ch</span> <span class="pl-o">&gt;=</span> <span class="pl-sc">&#39;0&#39;</span> <span class="pl-o">&amp;&amp;</span> <span class="pl-n">ch</span> <span class="pl-o">&lt;=</span> <span class="pl-sc">&#39;9&#39;</span><span class="pl-p">)</span> <span class="pl-p">{</span>
        <span class="pl-n">x</span> <span class="pl-o">=</span> <span class="pl-n">x</span> <span class="pl-o">*</span> <span class="pl-mi">10</span> <span class="pl-o">+</span> <span class="pl-n">ch</span> <span class="pl-o">-</span> <span class="pl-sc">&#39;0&#39;</span><span class="pl-p">;</span>
        <span class="pl-n">ch</span> <span class="pl-o">=</span> <span class="pl-n">getchar</span><span class="pl-p">();</span>
    <span class="pl-p">}</span>
    <span class="pl-k">return</span> <span class="pl-n">x</span> <span class="pl-o">*</span> <span class="pl-n">f</span><span class="pl-p">;</span>
<span class="pl-p">}</span>
<span class="pl-kt">int</span> <span class="pl-n">n</span><span class="pl-p">,</span> <span class="pl-n">m</span><span class="pl-p">,</span> <span class="pl-n">K</span><span class="pl-p">,</span> <span class="pl-n">cnt</span><span class="pl-p">,</span> <span class="pl-n">ed</span><span class="pl-p">;</span>
<span class="pl-kt">int</span> <span class="pl-n">bin</span><span class="pl-p">[</span><span class="pl-mi">22</span><span class="pl-p">],</span> <span class="pl-n">a</span><span class="pl-p">[</span><span class="pl-mi">22</span><span class="pl-p">];</span>
<span class="pl-kt">int</span> <span class="pl-n">dis</span><span class="pl-p">[</span><span class="pl-mi">22</span><span class="pl-p">][</span><span class="pl-mi">22</span><span class="pl-p">],</span> <span class="pl-n">d</span><span class="pl-p">[</span><span class="pl-mi">20005</span><span class="pl-p">],</span> <span class="pl-n">last</span><span class="pl-p">[</span><span class="pl-mi">20005</span><span class="pl-p">];</span>
<span class="pl-kt">int</span> <span class="pl-n">f</span><span class="pl-p">[</span><span class="pl-mi">1048576</span><span class="pl-p">][</span><span class="pl-mi">22</span><span class="pl-p">];</span>
<span class="pl-kt">bool</span> <span class="pl-n">vis</span><span class="pl-p">[</span><span class="pl-mi">20005</span><span class="pl-p">];</span>
<span class="pl-k">struct</span> <span class="pl-n">data</span> <span class="pl-p">{</span>
    <span class="pl-kt">int</span> <span class="pl-n">to</span><span class="pl-p">,</span> <span class="pl-n">next</span><span class="pl-p">,</span> <span class="pl-n">v</span><span class="pl-p">;</span>
<span class="pl-p">}</span> <span class="pl-n">e</span><span class="pl-p">[</span><span class="pl-mi">400005</span><span class="pl-p">];</span>
<span class="pl-kt">void</span> <span class="pl-nf">insert</span><span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">u</span><span class="pl-p">,</span> <span class="pl-kt">int</span> <span class="pl-n">v</span><span class="pl-p">,</span> <span class="pl-kt">int</span> <span class="pl-n">w</span><span class="pl-p">)</span> <span class="pl-p">{</span>
    <span class="pl-n">e</span><span class="pl-p">[</span><span class="pl-o">++</span><span class="pl-n">cnt</span><span class="pl-p">].</span><span class="pl-n">to</span> <span class="pl-o">=</span> <span class="pl-n">v</span><span class="pl-p">;</span>
    <span class="pl-n">e</span><span class="pl-p">[</span><span class="pl-n">cnt</span><span class="pl-p">].</span><span class="pl-n">next</span> <span class="pl-o">=</span> <span class="pl-n">last</span><span class="pl-p">[</span><span class="pl-n">u</span><span class="pl-p">];</span>
    <span class="pl-n">last</span><span class="pl-p">[</span><span class="pl-n">u</span><span class="pl-p">]</span> <span class="pl-o">=</span> <span class="pl-n">cnt</span><span class="pl-p">;</span>
    <span class="pl-n">e</span><span class="pl-p">[</span><span class="pl-n">cnt</span><span class="pl-p">].</span><span class="pl-n">v</span> <span class="pl-o">=</span> <span class="pl-n">w</span><span class="pl-p">;</span>
    <span class="pl-n">e</span><span class="pl-p">[</span><span class="pl-o">++</span><span class="pl-n">cnt</span><span class="pl-p">].</span><span class="pl-n">to</span> <span class="pl-o">=</span> <span class="pl-n">u</span><span class="pl-p">;</span>
    <span class="pl-n">e</span><span class="pl-p">[</span><span class="pl-n">cnt</span><span class="pl-p">].</span><span class="pl-n">next</span> <span class="pl-o">=</span> <span class="pl-n">last</span><span class="pl-p">[</span><span class="pl-n">v</span><span class="pl-p">];</span>
    <span class="pl-n">last</span><span class="pl-p">[</span><span class="pl-n">v</span><span class="pl-p">]</span> <span class="pl-o">=</span> <span class="pl-n">cnt</span><span class="pl-p">;</span>
    <span class="pl-n">e</span><span class="pl-p">[</span><span class="pl-n">cnt</span><span class="pl-p">].</span><span class="pl-n">v</span> <span class="pl-o">=</span> <span class="pl-n">w</span><span class="pl-p">;</span>
<span class="pl-p">}</span>
<span class="pl-kt">void</span> <span class="pl-nf">dijkstra</span><span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">x</span><span class="pl-p">)</span> <span class="pl-p">{</span>
    <span class="pl-n">priority_queue</span><span class="pl-o">&lt;</span><span class="pl-n">pa</span><span class="pl-p">,</span> <span class="pl-n">vector</span><span class="pl-o">&lt;</span><span class="pl-n">pa</span><span class="pl-o">&gt;</span><span class="pl-p">,</span> <span class="pl-n">greater</span><span class="pl-o">&lt;</span><span class="pl-n">pa</span><span class="pl-o">&gt;</span> <span class="pl-o">&gt;</span> <span class="pl-n">q</span><span class="pl-p">;</span>
    <span class="pl-k">for</span> <span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">i</span> <span class="pl-o">=</span> <span class="pl-mi">1</span><span class="pl-p">;</span> <span class="pl-n">i</span> <span class="pl-o">&lt;=</span> <span class="pl-n">n</span><span class="pl-p">;</span> <span class="pl-n">i</span><span class="pl-o">++</span><span class="pl-p">)</span> <span class="pl-n">d</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">]</span> <span class="pl-o">=</span> <span class="pl-n">inf</span><span class="pl-p">;</span>
    <span class="pl-k">for</span> <span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">i</span> <span class="pl-o">=</span> <span class="pl-mi">1</span><span class="pl-p">;</span> <span class="pl-n">i</span> <span class="pl-o">&lt;=</span> <span class="pl-n">n</span><span class="pl-p">;</span> <span class="pl-n">i</span><span class="pl-o">++</span><span class="pl-p">)</span> <span class="pl-n">vis</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">]</span> <span class="pl-o">=</span> <span class="pl-mi">0</span><span class="pl-p">;</span>
    <span class="pl-n">d</span><span class="pl-p">[</span><span class="pl-n">x</span><span class="pl-p">]</span> <span class="pl-o">=</span> <span class="pl-mi">0</span><span class="pl-p">;</span>
    <span class="pl-n">q</span><span class="pl-p">.</span><span class="pl-n">push</span><span class="pl-p">(</span><span class="pl-n">make_pair</span><span class="pl-p">(</span><span class="pl-mi">0</span><span class="pl-p">,</span> <span class="pl-n">x</span><span class="pl-p">));</span>
    <span class="pl-k">while</span> <span class="pl-p">(</span><span class="pl-o">!</span><span class="pl-n">q</span><span class="pl-p">.</span><span class="pl-n">empty</span><span class="pl-p">())</span> <span class="pl-p">{</span>
        <span class="pl-kt">int</span> <span class="pl-n">now</span> <span class="pl-o">=</span> <span class="pl-n">q</span><span class="pl-p">.</span><span class="pl-n">top</span><span class="pl-p">().</span><span class="pl-n">second</span><span class="pl-p">;</span>
        <span class="pl-n">q</span><span class="pl-p">.</span><span class="pl-n">pop</span><span class="pl-p">();</span>
        <span class="pl-k">if</span> <span class="pl-p">(</span><span class="pl-n">vis</span><span class="pl-p">[</span><span class="pl-n">now</span><span class="pl-p">])</span> <span class="pl-k">continue</span><span class="pl-p">;</span>
        <span class="pl-n">vis</span><span class="pl-p">[</span><span class="pl-n">now</span><span class="pl-p">]</span> <span class="pl-o">=</span> <span class="pl-mi">1</span><span class="pl-p">;</span>
        <span class="pl-k">for</span> <span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">i</span> <span class="pl-o">=</span> <span class="pl-n">last</span><span class="pl-p">[</span><span class="pl-n">now</span><span class="pl-p">];</span> <span class="pl-n">i</span><span class="pl-p">;</span> <span class="pl-n">i</span> <span class="pl-o">=</span> <span class="pl-n">e</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">].</span><span class="pl-n">next</span><span class="pl-p">)</span>
            <span class="pl-k">if</span> <span class="pl-p">(</span><span class="pl-n">d</span><span class="pl-p">[</span><span class="pl-n">now</span><span class="pl-p">]</span> <span class="pl-o">+</span> <span class="pl-n">e</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">].</span><span class="pl-n">v</span> <span class="pl-o">&lt;</span> <span class="pl-n">d</span><span class="pl-p">[</span><span class="pl-n">e</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">].</span><span class="pl-n">to</span><span class="pl-p">])</span> <span class="pl-p">{</span>
                <span class="pl-n">d</span><span class="pl-p">[</span><span class="pl-n">e</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">].</span><span class="pl-n">to</span><span class="pl-p">]</span> <span class="pl-o">=</span> <span class="pl-n">d</span><span class="pl-p">[</span><span class="pl-n">now</span><span class="pl-p">]</span> <span class="pl-o">+</span> <span class="pl-n">e</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">].</span><span class="pl-n">v</span><span class="pl-p">;</span>
                <span class="pl-n">q</span><span class="pl-p">.</span><span class="pl-n">push</span><span class="pl-p">(</span><span class="pl-n">make_pair</span><span class="pl-p">(</span><span class="pl-n">d</span><span class="pl-p">[</span><span class="pl-n">e</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">].</span><span class="pl-n">to</span><span class="pl-p">],</span> <span class="pl-n">e</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">].</span><span class="pl-n">to</span><span class="pl-p">));</span>
            <span class="pl-p">}</span>
    <span class="pl-p">}</span>
    <span class="pl-k">for</span> <span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">i</span> <span class="pl-o">=</span> <span class="pl-mi">1</span><span class="pl-p">;</span> <span class="pl-n">i</span> <span class="pl-o">&lt;=</span> <span class="pl-n">K</span> <span class="pl-o">+</span> <span class="pl-mi">1</span><span class="pl-p">;</span> <span class="pl-n">i</span><span class="pl-o">++</span><span class="pl-p">)</span> <span class="pl-n">dis</span><span class="pl-p">[</span><span class="pl-n">x</span><span class="pl-p">][</span><span class="pl-n">i</span><span class="pl-p">]</span> <span class="pl-o">=</span> <span class="pl-n">d</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">];</span>
    <span class="pl-n">dis</span><span class="pl-p">[</span><span class="pl-n">x</span><span class="pl-p">][</span><span class="pl-mi">0</span><span class="pl-p">]</span> <span class="pl-o">=</span> <span class="pl-n">d</span><span class="pl-p">[</span><span class="pl-n">n</span><span class="pl-p">];</span>
<span class="pl-p">}</span>
<span class="pl-kt">void</span> <span class="pl-nf">dp</span><span class="pl-p">()</span> <span class="pl-p">{</span>
    <span class="pl-k">for</span> <span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">now</span> <span class="pl-o">=</span> <span class="pl-mi">0</span><span class="pl-p">;</span> <span class="pl-n">now</span> <span class="pl-o">&lt;=</span> <span class="pl-n">ed</span><span class="pl-p">;</span> <span class="pl-n">now</span><span class="pl-o">++</span><span class="pl-p">)</span>
        <span class="pl-k">for</span> <span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">x</span> <span class="pl-o">=</span> <span class="pl-mi">1</span><span class="pl-p">;</span> <span class="pl-n">x</span> <span class="pl-o">&lt;=</span> <span class="pl-n">K</span> <span class="pl-o">+</span> <span class="pl-mi">1</span><span class="pl-p">;</span> <span class="pl-n">x</span><span class="pl-o">++</span><span class="pl-p">)</span>
            <span class="pl-k">if</span> <span class="pl-p">(</span><span class="pl-n">f</span><span class="pl-p">[</span><span class="pl-n">now</span><span class="pl-p">][</span><span class="pl-n">x</span><span class="pl-p">]</span> <span class="pl-o">!=</span> <span class="pl-o">-</span><span class="pl-mi">1</span><span class="pl-p">)</span>
                <span class="pl-k">for</span> <span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">i</span> <span class="pl-o">=</span> <span class="pl-mi">2</span><span class="pl-p">;</span> <span class="pl-n">i</span> <span class="pl-o">&lt;=</span> <span class="pl-n">K</span> <span class="pl-o">+</span> <span class="pl-mi">1</span><span class="pl-p">;</span> <span class="pl-n">i</span><span class="pl-o">++</span><span class="pl-p">)</span> <span class="pl-p">{</span>
                    <span class="pl-kt">int</span> <span class="pl-n">to</span> <span class="pl-o">=</span> <span class="pl-p">(</span><span class="pl-n">now</span> <span class="pl-o">|</span> <span class="pl-n">bin</span><span class="pl-p">[</span><span class="pl-n">i</span> <span class="pl-o">-</span> <span class="pl-mi">2</span><span class="pl-p">]);</span>
                    <span class="pl-k">if</span> <span class="pl-p">((</span><span class="pl-n">now</span> <span class="pl-o">&amp;</span> <span class="pl-n">a</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">])</span> <span class="pl-o">==</span> <span class="pl-n">a</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">])</span>
                        <span class="pl-k">if</span> <span class="pl-p">(</span><span class="pl-n">f</span><span class="pl-p">[</span><span class="pl-n">to</span><span class="pl-p">][</span><span class="pl-n">i</span><span class="pl-p">]</span> <span class="pl-o">&gt;</span> <span class="pl-n">f</span><span class="pl-p">[</span><span class="pl-n">now</span><span class="pl-p">][</span><span class="pl-n">x</span><span class="pl-p">]</span> <span class="pl-o">+</span> <span class="pl-n">dis</span><span class="pl-p">[</span><span class="pl-n">x</span><span class="pl-p">][</span><span class="pl-n">i</span><span class="pl-p">]</span> <span class="pl-o">||</span> <span class="pl-n">f</span><span class="pl-p">[</span><span class="pl-n">to</span><span class="pl-p">][</span><span class="pl-n">i</span><span class="pl-p">]</span> <span class="pl-o">==</span> <span class="pl-o">-</span><span class="pl-mi">1</span><span class="pl-p">)</span>
                            <span class="pl-n">f</span><span class="pl-p">[</span><span class="pl-n">to</span><span class="pl-p">][</span><span class="pl-n">i</span><span class="pl-p">]</span> <span class="pl-o">=</span> <span class="pl-n">f</span><span class="pl-p">[</span><span class="pl-n">now</span><span class="pl-p">][</span><span class="pl-n">x</span><span class="pl-p">]</span> <span class="pl-o">+</span> <span class="pl-n">dis</span><span class="pl-p">[</span><span class="pl-n">x</span><span class="pl-p">][</span><span class="pl-n">i</span><span class="pl-p">];</span>
                <span class="pl-p">}</span>
<span class="pl-p">}</span>
<span class="pl-kt">int</span> <span class="pl-nf">main</span><span class="pl-p">()</span> <span class="pl-p">{</span>
    <span class="pl-n">bin</span><span class="pl-p">[</span><span class="pl-mi">0</span><span class="pl-p">]</span> <span class="pl-o">=</span> <span class="pl-mi">1</span><span class="pl-p">;</span>
    <span class="pl-k">for</span> <span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">i</span> <span class="pl-o">=</span> <span class="pl-mi">1</span><span class="pl-p">;</span> <span class="pl-n">i</span> <span class="pl-o">&lt;</span> <span class="pl-mi">22</span><span class="pl-p">;</span> <span class="pl-n">i</span><span class="pl-o">++</span><span class="pl-p">)</span> <span class="pl-n">bin</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">]</span> <span class="pl-o">=</span> <span class="pl-n">bin</span><span class="pl-p">[</span><span class="pl-n">i</span> <span class="pl-o">-</span> <span class="pl-mi">1</span><span class="pl-p">]</span> <span class="pl-o">&lt;&lt;</span> <span class="pl-mi">1</span><span class="pl-p">;</span>
    <span class="pl-n">n</span> <span class="pl-o">=</span> <span class="pl-n">read</span><span class="pl-p">();</span>
    <span class="pl-n">m</span> <span class="pl-o">=</span> <span class="pl-n">read</span><span class="pl-p">();</span>
    <span class="pl-n">K</span> <span class="pl-o">=</span> <span class="pl-n">read</span><span class="pl-p">();</span>
    <span class="pl-n">ed</span> <span class="pl-o">=</span> <span class="pl-n">bin</span><span class="pl-p">[</span><span class="pl-n">K</span><span class="pl-p">]</span> <span class="pl-o">-</span> <span class="pl-mi">1</span><span class="pl-p">;</span>
    <span class="pl-k">for</span> <span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">i</span> <span class="pl-o">=</span> <span class="pl-mi">1</span><span class="pl-p">;</span> <span class="pl-n">i</span> <span class="pl-o">&lt;=</span> <span class="pl-n">m</span><span class="pl-p">;</span> <span class="pl-n">i</span><span class="pl-o">++</span><span class="pl-p">)</span> <span class="pl-p">{</span>
        <span class="pl-kt">int</span> <span class="pl-n">u</span> <span class="pl-o">=</span> <span class="pl-n">read</span><span class="pl-p">(),</span> <span class="pl-n">v</span> <span class="pl-o">=</span> <span class="pl-n">read</span><span class="pl-p">(),</span> <span class="pl-n">w</span> <span class="pl-o">=</span> <span class="pl-n">read</span><span class="pl-p">();</span>
        <span class="pl-n">insert</span><span class="pl-p">(</span><span class="pl-n">u</span><span class="pl-p">,</span> <span class="pl-n">v</span><span class="pl-p">,</span> <span class="pl-n">w</span><span class="pl-p">);</span>
    <span class="pl-p">}</span>
    <span class="pl-k">for</span> <span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">i</span> <span class="pl-o">=</span> <span class="pl-mi">1</span><span class="pl-p">;</span> <span class="pl-n">i</span> <span class="pl-o">&lt;=</span> <span class="pl-n">K</span> <span class="pl-o">+</span> <span class="pl-mi">1</span><span class="pl-p">;</span> <span class="pl-n">i</span><span class="pl-o">++</span><span class="pl-p">)</span> <span class="pl-n">dijkstra</span><span class="pl-p">(</span><span class="pl-n">i</span><span class="pl-p">);</span>
    <span class="pl-kt">int</span> <span class="pl-n">x</span> <span class="pl-o">=</span> <span class="pl-n">read</span><span class="pl-p">();</span>
    <span class="pl-k">for</span> <span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">i</span> <span class="pl-o">=</span> <span class="pl-mi">1</span><span class="pl-p">;</span> <span class="pl-n">i</span> <span class="pl-o">&lt;=</span> <span class="pl-n">x</span><span class="pl-p">;</span> <span class="pl-n">i</span><span class="pl-o">++</span><span class="pl-p">)</span> <span class="pl-p">{</span>
        <span class="pl-kt">int</span> <span class="pl-n">u</span> <span class="pl-o">=</span> <span class="pl-n">read</span><span class="pl-p">(),</span> <span class="pl-n">v</span> <span class="pl-o">=</span> <span class="pl-n">read</span><span class="pl-p">();</span>
        <span class="pl-n">a</span><span class="pl-p">[</span><span class="pl-n">v</span><span class="pl-p">]</span> <span class="pl-o">+=</span> <span class="pl-n">bin</span><span class="pl-p">[</span><span class="pl-n">u</span> <span class="pl-o">-</span> <span class="pl-mi">2</span><span class="pl-p">];</span>
    <span class="pl-p">}</span>
    <span class="pl-n">memset</span><span class="pl-p">(</span><span class="pl-n">f</span><span class="pl-p">,</span> <span class="pl-o">-</span><span class="pl-mi">1</span><span class="pl-p">,</span> <span class="pl-k">sizeof</span><span class="pl-p">(</span><span class="pl-n">f</span><span class="pl-p">));</span>
    <span class="pl-n">f</span><span class="pl-p">[</span><span class="pl-mi">0</span><span class="pl-p">][</span><span class="pl-mi">1</span><span class="pl-p">]</span> <span class="pl-o">=</span> <span class="pl-mi">0</span><span class="pl-p">;</span>
    <span class="pl-n">dp</span><span class="pl-p">();</span>
    <span class="pl-kt">int</span> <span class="pl-n">ans</span> <span class="pl-o">=</span> <span class="pl-n">inf</span><span class="pl-p">;</span>
    <span class="pl-k">for</span> <span class="pl-p">(</span><span class="pl-kt">int</span> <span class="pl-n">i</span> <span class="pl-o">=</span> <span class="pl-mi">1</span><span class="pl-p">;</span> <span class="pl-n">i</span> <span class="pl-o">&lt;=</span> <span class="pl-n">K</span> <span class="pl-o">+</span> <span class="pl-mi">1</span><span class="pl-p">;</span> <span class="pl-n">i</span><span class="pl-o">++</span><span class="pl-p">)</span>
        <span class="pl-k">if</span> <span class="pl-p">(</span><span class="pl-n">f</span><span class="pl-p">[</span><span class="pl-n">ed</span><span class="pl-p">][</span><span class="pl-n">i</span><span class="pl-p">]</span> <span class="pl-o">!=</span> <span class="pl-o">-</span><span class="pl-mi">1</span><span class="pl-p">)</span> <span class="pl-n">ans</span> <span class="pl-o">=</span> <span class="pl-n">min</span><span class="pl-p">(</span><span class="pl-n">ans</span><span class="pl-p">,</span> <span class="pl-n">f</span><span class="pl-p">[</span><span class="pl-n">ed</span><span class="pl-p">][</span><span class="pl-n">i</span><span class="pl-p">]</span> <span class="pl-o">+</span> <span class="pl-n">dis</span><span class="pl-p">[</span><span class="pl-n">i</span><span class="pl-p">][</span><span class="pl-mi">0</span><span class="pl-p">]);</span>
    <span class="pl-n">printf</span><span class="pl-p">(</span><span class="pl-s">&quot;%d&quot;</span><span class="pl-p">,</span> <span class="pl-n">ans</span><span class="pl-p">);</span>
    <span class="pl-k">return</span> <span class="pl-mi">0</span><span class="pl-p">;</span>
<span class="pl-p">}</span>
</cpde></pre></div>